@article{ref1,
title="Sewing needle as an antral foreign body",
journal="British dental journal",
year="1987",
author="Holmes, A.",
volume="162",
number="4",
pages="153-154",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-0610",
doi="10.1038/sj.bdj.4806054",
url="http://dx.doi.org/10.1038/sj.bdj.4806054"
}